Question

訪客0

請問複數i這邊是怎麼合併計算成下一行的？
我只知道0.0005是1/2000

X₁
2000
36=
X₁
X1-X2
072
100% t
-250 Adlar
→36=(0.0005-0.006₁) X₁ (0-0047) X₂
1

Answer 1

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分子分母同乘i
i^2 = -1
所以
(1/100i - 1/250i)X1
= (-i/100 + i/250)
= (-0.01i+ 0.004i)X1
= (-0.006i)X1

-(-1/250i)X2
= (1/250i)X2
= (-i/250)X2
= (-0.004i)X2